Cannot upload image

Hi demonllama,
this is definitely not default WordPress behaviour. What I think is happening is that for whatever reason, when you select an image and then press SET IMAGE, your site is reloading the page – which it absolutely should not be doing.

I am also unable to replicate this issue on any of my own sites.

Can you please try and do the following?

—
First, go to the edit question screen, then press F12 to open your browsers debug console window (you can also right-click, then select “inspect”. Now what you need to do is enable a featured called “Preserve log”, but it may be called something slightly different depending on your browser. In Chrome, this option can be found by selecting the gear icon in the top right of the new console window.

Once selected, try adding an image like you normally would. Once done, copy/paste anything you see in the console window here.
—

The above will let me know if there is a javascript conflict in your site causing this. You could have updated another plugin that has introduced bugs, and the above output will help us track that down.

Is this correct? I wish I knew more to be able to do something with this information.

JQMIGRATE: Migrate is installed, version 1.4.1
hdq_admin.js?v=1.6.1&ver=1.0:8 HD Quiz initiated
hdq_admin.js?v=1.6.1&ver=1.0:97 Uncaught TypeError: Cannot read property 'url' of undefined
    at b.Collection.<anonymous> (hdq_admin.js?v=1.6.1&ver=1.0:97)
    at s (backbone.min.js?ver=1.2.3:1)
    at r (backbone.min.js?ver=1.2.3:1)
    at m (backbone.min.js?ver=1.2.3:1)
    at b.Collection.k.trigger (backbone.min.js?ver=1.2.3:1)
    at b.Collection._onModelEvent (backbone.min.js?ver=1.2.3:1)
    at s (backbone.min.js?ver=1.2.3:1)
    at r (backbone.min.js?ver=1.2.3:1)
    at m (backbone.min.js?ver=1.2.3:1)
    at N.d.k.trigger (backbone.min.js?ver=1.2.3:1)
/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_NETWORK_IO_SUSPENDED
np.lexity.com/embed/YW/1340b4b8a82905a5f8328185abbb1b80/h/1/v/v5cwGEa0uMw9/k/W9SrRNsw7sB7/u/http%3A%2F%2F556.rocks%2Fwp-admin%2Fadmin.php%3Fpage%3Dhdq_quizzes/n/1563574761144/t/Quizzes%20%E2%80%B9%20HFD%20L556%20%E2%80%94%20WordPress/r/http%3A%2F%2F556.rocks%2Fwp-admin%2Fadmin.php%3Fpage%3Dhdq_options/vn/1/c/slldwnsi.f.kk[40]?id=c6bd61c68100&ts=1563577410622:1 Failed to load resource: net::ERR_NETWORK_IO_SUSPENDED
/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_NETWORK_CHANGED
2/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_INTERNET_DISCONNECTED
/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_EMPTY_RESPONSE
DevTools failed to parse SourceMap: https://556.rocks/wp-content/plugins/page-links-to/css/quick-add.css.map
hdq_admin.js?v=1.6.1&ver=1.0:97 Uncaught TypeError: Cannot read property 'url' of undefined
    at b.Collection.<anonymous> (hdq_admin.js?v=1.6.1&ver=1.0:97)
    at s (backbone.min.js?ver=1.2.3:1)
    at r (backbone.min.js?ver=1.2.3:1)
    at m (backbone.min.js?ver=1.2.3:1)
    at b.Collection.k.trigger (backbone.min.js?ver=1.2.3:1)
    at b.Collection._onModelEvent (backbone.min.js?ver=1.2.3:1)
    at s (backbone.min.js?ver=1.2.3:1)
    at r (backbone.min.js?ver=1.2.3:1)
    at m (backbone.min.js?ver=1.2.3:1)
    at N.d.k.trigger (backbone.min.js?ver=1.2.3:1)
(anonymous) @ hdq_admin.js?v=1.6.1&ver=1.0:97
s @ backbone.min.js?ver=1.2.3:1
r @ backbone.min.js?ver=1.2.3:1
m @ backbone.min.js?ver=1.2.3:1
k.trigger @ backbone.min.js?ver=1.2.3:1
_onModelEvent @ backbone.min.js?ver=1.2.3:1
s @ backbone.min.js?ver=1.2.3:1
r @ backbone.min.js?ver=1.2.3:1
m @ backbone.min.js?ver=1.2.3:1
k.trigger @ backbone.min.js?ver=1.2.3:1
clickSelect @ media-views.min.js?ver=5.2.2:2
click @ media-views.min.js?ver=5.2.2:2
dispatch @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-core,jquery-ui-mouse,jquery-ui-draggable,jquery-ui-slider,jquery-tou&load[]=ch-punch,iris,wp-color-picker,jquery-effects-core,jquery-effects-fade,moxiejs,plupload&ver=5.2.2:3
r.handle @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-core,jquery-ui-mouse,jquery-ui-draggable,jquery-ui-slider,jquery-tou&load[]=ch-punch,iris,wp-color-picker,jquery-effects-core,jquery-effects-fade,moxiejs,plupload&ver=5.2.2:3

Hi demonllama,
yup; thats the right log ??

The issue seems to be a network-related one; specifically ERR_NETWORK_IO_SUSPENDED.

What HD Quiz does is, once you’ve selected an image, it will grab the thumbnail URL to display in the backend. The problem is that it is unable to get the URL of your uploaded image due to the connection being canceled.

/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_NETWORK_CHANGED
/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_INTERNET_DISCONNECTED
/wp-admin/admin-ajax.php:1 Failed to load resource: net::ERR_EMPTY_RESPONSE

I wish I could give you a definitive answer and how you can fix these connection errors, but there are just so many variables and possibilities that could cause it. This could even just end up being a temporary issue with your host, or even your own internet connection.

Here are some things you can try though (in recommended order).

1) Clear your cache, reboot your computer and try again.
2) If you have someone else you trust, ask them to attempt to upload an image.
3) Try a different browser.
4) Do the WordPress debug list. Basically, disable all plugins and revert to the default theme, and only enable HD Quiz. See if it now works. If it does work, then enable everything back one by one until we find the errant plugin.

In the meantime, I’ll do some more research and see if there are any usual reasons for admin-ajax.php (a super important WordPress file) would ever fail to return those kinds of network errors.